" However, hidden power often lies in the most inconspicuous places — in this case, in the lymphatic system. Those tiny particles can enter the lymphatic system, embedded in fat droplets, and once there, they attract the attention of ever-vigilant immune cells. When they discover a tiny particle of peanut in the lymphatic fluid, for example, they naturally attack it as a foreign body. "

― Giulia Enders , Gut: The Inside Story of Our Body’s Most Underrated Organ